{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y7ODEGBNZ3WYRK7IIB4J2IDRSI","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"5cc91ff79a61f2b0df577da65dc76130b6907299b4957f0031ed75c103876fd2","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-12-06T17:32:01Z","title_canon_sha256":"85acdf1da98c1819b0a359e2b28ffaedb4e212060c95c490925a1797f51c20f2"},"schema_version":"1.0","source":{"id":"1312.1937","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.1937","created_at":"2026-05-18T01:45:57Z"},{"alias_kind":"arxiv_version","alias_value":"1312.1937v1","created_at":"2026-05-18T01:45:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.1937","created_at":"2026-05-18T01:45:57Z"},{"alias_kind":"pith_short_12","alias_value":"Y7ODEGBNZ3WY","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y7ODEGBNZ3WYRK7I","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y7ODEGBN","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:a6e18c412871428dccb29ded78ffed8ae8e5518fba1eabbedc9120a2ff0a3b2a","target":"graph","created_at":"2026-05-18T01:45:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The Reduced Relativistic Gas (RRG) model was introduced by A. Sakharov in 1965 for deriving the cosmic microwave background (CMB) spectrum. It was recently reinvented by some of us to achieve an interpolation between the radiation and dust epochs in the evolution of the Universe. This model circumvents the complicated structure of the Boltzmann-Einstein system of equations and admits a transparent description of warm-dark-matter effects. It is extended here to include, on a phenomenological basis, an out-of-equilibrium interaction between radiation and baryons which is supposed to account for ","authors_text":"Alan M. Velasquez-Toribio, Ilya L. Shapiro, Julio.C. Fabris, Winfried Zimdahl","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-12-06T17:32:01Z","title":"Interacting photon-baryon fluid, warm dark matter and the first acoustic peak"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.1937","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:73f10302a39cfaebb9ecc54e44ba74465d156a7931cbcc394c691dfb0a616cc5","target":"record","created_at":"2026-05-18T01:45:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"5cc91ff79a61f2b0df577da65dc76130b6907299b4957f0031ed75c103876fd2","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-12-06T17:32:01Z","title_canon_sha256":"85acdf1da98c1819b0a359e2b28ffaedb4e212060c95c490925a1797f51c20f2"},"schema_version":"1.0","source":{"id":"1312.1937","kind":"arxiv","version":1}},"canonical_sha256":"c7dc32182dceed88abe840789d20719229373f40dcf4ff24a33329049a1e9637","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7dc32182dceed88abe840789d20719229373f40dcf4ff24a33329049a1e9637","first_computed_at":"2026-05-18T01:45:57.757846Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:57.757846Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y9D63f+Tx+F99DLktGkWjDfo+xopjXPq25ROZD/VPeWIXWvDKlWafeZZDGPbp4U/twmcX6JjVtp7BDz+ssbRAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:57.758291Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.1937","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73f10302a39cfaebb9ecc54e44ba74465d156a7931cbcc394c691dfb0a616cc5","sha256:a6e18c412871428dccb29ded78ffed8ae8e5518fba1eabbedc9120a2ff0a3b2a"],"state_sha256":"f99fd490e0d3a2b414c1330d706ae5bb30029b3dc8c037ab3c79d0d9c731a03e"}